4500W, 240V, Water Heater Fold Back Screw In Better Element, Low Watt Density, 75+ Watts Per SQIN, Minimum Tank Diameter 13", Sears, State & Whirlpool Heaters, UL/CSA Listed, Gasket Included, Fits Most Models Of American, A.O. Smith, Bradford White, Craftmaster, General Electric, GS Wood, Kenmore, Lochinvar, Maytag, Mor-Flo, Reliance, Rheem, Richmond, Ruud, Detailed Instructions Included, 1 Year Warranty.